Device for supplying water and sand to stone-sawing machines



2 Sheets-Sheet 1,

No Model.)

B. M. an 1v1. R. HALL.. DEVISE EUR SUPPLYING WATER AND SAND T0 STONE SAWING MACHINES.

No. 414,529` Patented "Nov, 5. 1889,

(No Model.) 2 sheets-sheet 2.

` B... M. a. M. R. HALL. DEVICE POR SUPPLYING WATER AND'SAND T0 STONE SAWING MACHINES. No. 414,529. Patented Nov. 5, 1889..

UNITED Sra'rns N,arnnrr ericag ENJAMIN M. IIALII, OF TATE, AND MAXCTA R. IIAILL, OF COLIMA, GEORGIA.

DEVICE FOR SUPPLYING WATER AND SAND TO STONBSAWING. MACHINES.

SPECIFICATION forming part of Letters Patent No. 414,529, dated November 5, 188.9. n

Serial No. 304,964. (No model.)

To @ZZ whom t may concern:

Be it known that we, BENJAMIN M. HALL, residing at Tate, in the county of Pickens, and MAXCY R. IIALL, residing at Colima, in the county of Gordon, and State of Georgia, citizens of the United States, have invented certain new and useful Improvements in Devices for Supplying' Water and Sand to Stone-Sawing Machines;4 and we do hereby declare that the following is a full, clear, and exact description of the same, reference'being had to the annexed drawings, making a part of this speciication, and to the letters and figures of reference marked thereon.

This invention relates to certain new and useful improvements in devices for supplying water and sand to stone sawing machines, and it aims at cheapness and durability of parts and the perfect working with little care on the part of the operator.

The novelty resides in the peculiar combinations and the construction, arrangement, and adaptation of parts, all as more fully hereinafter described, shown in the drawings, and then particularly pointed out in the appended claims.

The invention is illustrated in the accompanying drawings, which, with the letters of reference marked thereon,forma part of this specification, and in whichings by letter, A designates a barrel or other suitable receptacle, into which the sand and water are to be deposited and from which the same is distributed to the different gangs of saws, (not shown,) whereit sprinkles on the block of stone that is being sawed by the gangs of saws, for a purpose well understood by those skilled in the art. Pipes a are shown,

through which the sand and water iiow to the gangs of saws.

B is the pump; C, the connection with the source of wateiesupply, and D the outlet-pipe from the pump, which pipe is provided with an air-chamber E and air-vent F, also with a cock b. The upper end of this pipe terminates in or is provided with a nozzle C, which is arranged within the T of an ordinary gas-fitting G. Connected with the opposite end of this T is the pipe II, which we term the uptake-pipe, which empties intol the bai rel A.

I is a suction-pipe, with its lower end within the sand-receptacle J and its other end connected with the horizontal branch of the T, as shown. This suction-pipe extends nearly to the bottom of t-he sand box or receptacle,

so as not to take up any of the lighter parti- Y a detachable throat d, as shown more clearly in Fig. 2. v

Il is an 'overflow-pipe to the barrel A, to prevent said barrel from overflowing and serving to carry any surplus therein back to the sand-box, so that it may not be lost. Any suit-able back stop may be provided to pre vent the receptacle A from emptying itself into the sand-bon when the pump is stopped.

In mountainous regions we may dispense with the pump and connect the pipe D with a suitable source of supply at a great height, so as to get the supply ot water to the uptake pipe under great pressure, and have found this to work with goed results.-

The pump, as shown in enlarged section in Fig. 3, is constructed as follows:

M is the cylinder, divided into two equal compartments by means of the vertical diaphragm e, which, however, does not extend entirely to the top,but terminates a short distance below said top, so as to allow a passage from one compartment to the other.

f is the outletcommunicating with the pipe I), and g is the inlet from the source of watersupply.

N and O are the piston-rods, connected at their outer ends by means of the crossabar P, to which the operatingerod Qis attached, so that both piston-rods move simultaneously in the same direction. These pistonrods pass through suitable stufngboxes on the cylin- IOO der,and Within the cylinder are provided with the adjustable tappets 71 and h and with the disks R and S. The pistons T and U are formed with ribs j, Which connect the outer rim Z, and through the central hub or ring 7c the lower ends of the piston-rods pass loosely.

The operation is simple. The pump supplies the Water under high pressure, which, as it passes out at the nozzle, issues with great force in a small solid stream which shoots through the throat and up the uptakepipe. This produces a greatdraft and suction, which brings up sand and Water .from the sand-receptacle through the pipe Lwhere it unites with the Water passing through the pipe H and passes up into the receptacle A,

from whence itis carried to the desired places i by means of the distributing-pipes a. When the receptacle A becomes too full, the water and sand flow 4through the overflowfpipe L back into v4the sand-receptacle J,Which also has an overflow-pipe K, that takes oji the surplus Water, carrying with the same the very ,fine sand,that is no .longer useful :in sawing.

The peculiarformvof pump is important y.in this connection. 'It operates Without-'any flapvalves, that have to be lifted by Water-,pressure while the .full .pressure ofthe ,rising -main The pistons .are .so `Vconstructed and arranged that one is .effective While the Water passes freely through the The change takes placeat the endof` is on top of them.

other. the stroke, or, rather at the beginningof the stroke, and is effected by the movements lof, The water flows in the same direction, having,

the-piston-.rods and not by the Water.

only a momentary stoppage .as change in the pistons takes place. 'The movement of thej piston-rods through the pistons ischecked in one direction bythe tappetsand ,in the other the piston becomes non-.effective and thewater passesfreclythrough it.

When the stroke 1s in onefdirectiomone pistonis effective, and

in, and the suction-pipe connected with the sand-receptacle and with the uptake-,pipe between said nozzle and throat, substantially as shown and described.

3. The combination, lwith the receptacle A,

`the sand-receptacle, and the,pmnp,fof the pipe leading from the pump and provided with aA nozzle, the uptake-pipe, thecontracted throat therein, the suction-pipe leading from the sand-receptacle and communicating ywith the uptakepipe between the throat and nozzle, and the overflow-.pipe to the receptacle A, leading to the sand-receptacle, substantially vas shown anddescribed, and .for `the purpose specified.

4. The combination, with the receptacle A,

. the sand-receptacle, van d the pum-p and lsuction-pipe, substantially as describedffonforcing the .Water ,and drawing the sand into the the recept-acle A to the sand-receptacle, :and the overflow-pipe to the sand-receptacle,c'on

.nected near the top thereof, substantially as .presence ot' two witnesses. bythe disks Rand S. When thedisk fits `against the piston and makes it a solid piston, vas shown at the leftof Fig. 3, it vbecomes effective; but when the :disk vis .moved .away from the piston,as at the right of said figure, f

vBENJAMIN M. HALL.

MAXOY HALL. XVitnesses as to .Benjamin M. Hall:

T. G. SIMMONS, W. B. MINOEY. Witnesses to Maxcy iR. Hall:

J. H. JONES, METELLUS B. HALL.

receptacle A, of. the overflow-,pipe leadingzfrom 

